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Latest News

Oct 2018...

CALPUFF View 8.6 Released!

- Sensitive Receptor Reports
- BACK.DAT File Maker
- Receptor Selection Update

see release notes

Jul 2018...

AERSCREEN View 2.6 Released!

- 18081 Model Updates
- Automated Tile Maps

see release notes

Apr 2018...

IRAP-h View 5.0 Released!

- New Risk Types, Site Parameters
- Automated Tile Maps
- GUI Updates

see release notes


Modeling Data

Sources of Air Quality Modeling Data

See below links to several sources of data for your air quality modeling projects:

Meteorological Data Data SourceWebMET - Free Meteorological Data provides free meteorological data for both the United States and Canada! The site not only includes free met data for air dispersion models, but links to meteorological books, videos, software and more. Explore and Learn using WebMET for all things meteorological.

US Met Data
Canada Met Data

Terrain Data

WebGIS - Free Terrain Data Source contains extensive map coverage for technical applications including Air Dispersion Modeling, Human Health & Ecological Risk Assessment and Terrain Processing for free! These maps are ready for download in various formats, to facilitate your modeling.

SRTM - Shuttle Radar Topography Mission - Terrain data in resolutions of 90m and 900m covering the entire world and of 30m for the US (FREE):

SRTM1 (U.S. Coverage ~30m)
SRTM3 (Global Coverage ~90m)
SRTM30 (Global Coverage ~900m)

Land Use Data

GLCC - Global Land Cover Characterization - Land Use/Land Cover data in 900Land Use Mapm resolution covering the entire world:

GLCC (Global Coverage ~1km)